http://www.teachengineering.org/view_lesson.php?url=collection/cub_/lessons/cub_energy/cub_energy_lesson04.xmllessontext/xmlIntegrated Teaching and Learning Program, energyfrictionstatic frictionkinetic frictiondragaerodynamicforcescoefficient of frictionfluidFrictionStatic frictionKinetic frictionCoefficient of frictionDrag

Students learn about friction and drag — two different forces that convert energy of motion to heat. Both forces can act on a moving object and decrease its velocity. Students learn examples of friction and drag, and suggest ways to reduce the impact of these forces. The equation that governs common frictional forces is introduced, and during a hands-on activity, students experimentally measure a coefficient of friction.

If you take a car built before 1970 and place it next to a car built today, they look incredibly different. The older cars tend to be boxy with abrupt edges; newer cars are designed with rounded corners, edges and smooth curves. Mechanical and aerospace engineers have designed vehicles to be more aerodynamic to reduce drag force, and thus improve gas mileage. Recognize the different types of friction: static friction, kinetic friction, and dragUnderstand how friction and drag work Learn how to calculate friction and drag Give examples of friction and drag 50TeachEngineering.orgChris YakackiBailey JonesMatt LundbergMalinda Schaefer ZarskeDenise CarlsonKahan, Peter. Science Explorer: Motion, Forces, and Energy. Upper Saddle River, NJ: Prentice Hall, 2000.S11417D8International_Technology_Education_Association-ITEA_STL_StandardsTechnologyE. Energy is the capacity to do work. 68S11424D2ColoradoSciencea. Predict and evaluate the movement of an object by examining the forces applied to it 88S11424D3ColoradoScienceb. Use mathematical expressions to describe the movement of an object 88S1142658ColoradoMatha. Add, subtract, multiply and divide rational numbers including integers, positive and negative fractions and decimals 88S11426CFColoradoMathb. Use representations of linear functions to analyze situations and solve problems 88United StatesCopyright 2012 - Integrated Teaching and Learning Program, College of Engineering, University of Colorado at Boulderhttp://www.teachengineering.org/policy_ipp.phphttp://www.teachengineering.org/2010-08-238Teacher